DL1EFA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DL1EFA, decoded by SO8OO in southeastern Poland. 26 FT8 messages attributed to this token as transmitter, on 60m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-17 and 2026-09-20.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 26 FT8 messages attributed to DL1EFA as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (100%). In this small sample, the estimated median decoder S/N was -16 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 26 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -18 to -9 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 1.
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with DL1EFA in decoded directed-looking exchanges:
Most frequent locator attributed to DL1EFA
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- JN58 · 6 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 799 km (approx.)
- Last such locator decoded
- 2026-09-20 15:41 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
Observed FT8 exchanges
S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.
| Time UTC | Band | DL1EFA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 15:41 | 60m | -8 / - | DK4RH | - / - | 2 | Partial capture |
| 09-20 15:37 | 60m | -15 / - | F5UGX | - / 0 | 4 | ✓ Closing fragment |
| 09-20 15:35 | 60m | -10 / - | F1DZP | - / -1 | 2 | ✓ Closing fragment |
| 09-20 15:30 | 60m | -17 / +4 | DL4YDR | -16 / -3 | 4 | ✓ Full exchange observed |
| 09-20 15:29 | 60m | -16 / - | DD6ZV | -4 / -1 | 7 | Partial capture |
| 09-20 15:19 | 60m | -20 / - | DL1KYF | - / -5 | 2 | ✓ Closing fragment |
| 09-20 15:16 | 60m | -15 / - | IW2HWN | - / - | 2 | ✓ Closing fragment |
| 09-17 16:29 | 60m | -18 / - | DL6EBC | - / -5 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 153100 -18 1233 DL4YDR DL1EFA RR73 153115 -17 1234 DL1EFA DL4YDR 73 153130 -16 1232 DD6ZV DL1EFA -13 (x2) 153300 -15 1119 DL3FBI DL1EFA RR73 153330 -15 1232 DD6ZV DL1EFA -13 (x2) 153530 -9 2477 F1DZP DL1EFA R-01 (x2) 153745 -16 1485 F5UGX DL1EFA JN58 (x4) 154115 -9 677 DK4RH DL1EFA JN58 (x2)
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
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